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  1. 4238 : ERGO KeyMod™ Forend Trirail Mossberg 500
    • Keymod forend for Mossberg 500
    • Keymod rails at 3, 6, and 9 o"clock
    • Extremely light-weight and low profile
    • Black anodized 6061-T6 Alum.
    Learn More
  2. 4241-BK : ERGO Short KeyMod Mossberg Tri Rail

    Keymod forend for Mossberg 500.
    Keymod rails at 3, 6, and 9 o'clock
    Extremely light-weight and low profile.
    Hard Black type III anodized 6061-T6 Aluminum

    Learn More
  3. 4256-BK : ERGO Short M-LOK Mossberg 500/590 Tri Rail

    M-LOK forend for Mossberg 500/590 SHOCKWAVE
    M-LOK rails at 3, 6, and 9 o’clock
    Extremely light-weight and low profile.
    Hard Black type III anodized 6061-T6 Aluminum

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  4. 4454 : Tactical Stock Adapter Mossberg 500®
    Use the Ergo Grip Tactical Stock Adaptor to install AR-15 type stocks and pistol grips on your Remington 870 or Mossberg 500/590 shotguns. Learn More
  5. 4456 : Stock Adapter Mossberg 500/590 - .410 gauge

    Use the ERGO .410 GA Shotgun Stock Adapter to install AR style stocks and pistol grips on your Mossberg 590. Will fit with a pistol arm brace on the SHOCKWAVE and accommodates mil spec or commercial buffer tubes.

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  6. 4763-BK : ERGO 5-Slot KeyMod™ Aluminum U.M.P. Picatinny Rail (2 Mounting Holes) - Black

    Use your Picatinny accessories on your KeyModT handgaurds with this conversion system.

    The outside is a Picatinny rail. The inside is the mounting system to the KeyModT handguard.

    Hard anodized finish on 6061 T6 Aluminum.

    *Compatible with #4238-BK Mossberg Shotgun KeyModT Forend

    Learn More
  7. 4764-BK : ERGO 8-Slot KeyMod™ Aluminum U.M.P. Picatinny Rail (2 Mounting Holes) - Black

    Use your Picatinny accessories on your KeyModT handgaurds with this conversion system.

    The outside is a Picatinny rail. The inside is the mounting system to the KeyModT handguard.

    Hard anodized finish on 6061 T6 Aluminum

    *Compatible with #4238-BK Mossberg Shotgun KeyModT Forend

    Learn More
  8. 4765-BK : ERGO 10-Slot KeyMod™ Aluminum U.M.P. Picatinny Rail (2 Mounting Holes) - Black

    Use your Picatinny accessories on your KeyModT handgaurds with this conversion system.

    The outside is a Picatinny rail. The inside is the mounting system to the KeyModT handguard.

    Hard anodized finish on 6061 T6 Aluminum

    *Compatible with #4238-BK Mossberg Shotgun KeyModT Forend.

    Learn More
  9. 4766-BK : ERGO 5-Slot KeyMod™ Aluminum LoPro Cantilever U.M.P. Picatinny Rail - Black

    Use your Picatinny accessories on your KeyModT handgaurds with this conversion system.

    The outside is a Picatinny rail. The inside is the mounting system to the KeyModT handguard.

    Hard anodized finish on 6061 T6 Aluminum

    *Compatible with #4238-BK Mossberg Shotgun KeyModT Forend.

    Learn More
  10. 4865 : ERGO Trirail Forend Standard Length Mossberg 500/590 6 15/16 Lenght - Black

    ERGO Three Rail Shotgun Forend provides a Mossberg 500/590 shooters with a tri-rail mounting platform for their forend.

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  11. 4865-SHORT : ERGO Trirail Forend Mossberg 500/590 5 13/16 Length - Black

    ERGO Three Rail Shotgun Forend provides a Mossberg 500/590 shooters with a tri-rail mounting platform for their forend.

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  12. 4872 : ERGO Standard M-LOK Length Mossberg 500/590 Forend

    M-LOK forend for Mossberg 500/590
    M-LOK rails at 3, 6, and 9 o'clock
    Extremely light-weight and low profile.
    6 15/16? LENGTH
    Hard Black type III anodized 6061-T6 Aluminum

    Learn More
  13. 4925-GG : ERGO F93 Pro Stock™ Adjustable AR15/M16 - Graphite Grey

    Eight position collapsible stock for AR style rifles and shotguns providing one of the longest length of pull on the market with a fixed cheek piece for a constant and repeatable cheek weld in any of the eight stock positions.

    Once the butt is locked into position, the F93 has the feel of a fixed stock without the rattling and movement shooters are used to.

    F93 Strike Plate available

    *Dual use compatible with shotgun adapter #4453 and #4454

    Learn More
  14. 4969-MOSS : ERGO Double Sling Loop Shotgun End Plate Mossberg 500/590 Ambidextrous Black

    The ERGO Double Sling Loop Shotgun End Plate provides Mossberg 500/590 shooters with an ambidextrous sling point. If used with a pistol grip stock a longer screw may be needed.

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  15. 90340 : SureShell® Aluminum Carrier for Mossberg 500 (8-Shell 12Ga) Black

    Shell holder carriers are milled from 6061-T6 aircraft aluminum, then bead blasted and mil-spec hard anodized for a rugged non-glare finish. They are secured to application-specific brackets, and include high temperature adhesive-backed die-cut rubber gaskets to protect the host shotgun's finish.

    Learn More
  16. 90390 : SureShell® Carrier for Mossberg 500 6 Shell 12Ga Black

    Shell holder carriers are milled from 6061-T6 aircraft aluminum, then bead blasted and mil-spec hard anodized for a rugged non-glare finish. They are secured to application-specific brackets, and include high temperature adhesive-backed die-cut rubber gaskets to protect the host shotgun's finish.

    Learn More
  17. 90490 : High-tube® Telescoping Stock Kit for Mossberg 500 12Ga 9" rail

    High-tube adapters have a comb height equivalent to an AR-15 and require an optics rail (included).

    High tube adapters allow proper cheek weld and eye alignment with popular optics such as an ACOG or Leupold CQT and others.

    Our complete stock kits include the aluminum AR adapter, Hogue rubber overmolded grip, US-made mil-spec six-position M4 SOPMOD style telescoping stock assembly and all necessary assembly hardware and instructions.

    Learn More
  18. 90620 : High-tube® Telescoping Stock Adapter & Rail Kit for Mossberg 500 12Ga 9" Adapter rail

    High-tube adapters have a comb height equivalent to an AR-15 and require an optics rail (included).

    High tube adapters allow proper cheek weld and eye alignment with popular optics such as an ACOG or Leupold CQT and others.

    Learn More
  19. 91070 : LEO Gen II Telescoping Hydraulic Recoil Stock Kit for Beretta 1301 (12-GA)

    Adapts AR-15 style butt stocks and pistol grips for use with Beretta 1301 semi-automatic shotguns to gives the shotgun similar handling characteristics to the AR-15. Our complete stock kits include the aluminum AR adapter; Hogue rubber overmolded grip; US-made mil-spec six-position M4 SOPMOD style telescoping stock assembly; and all necessary assembly hardware and instructions. The optional recoil buffer can absorb felt recoil by up to 70%.

    Learn More
  20. 91240 : SureShell® Carrier for Mossberg 500 4 Shell 12Ga Black

    Shell holder carriers are milled from 6061-T6 aircraft aluminum, then bead blasted and mil-spec hard anodized for a rugged non-glare finish. They are secured to application-specific brackets, and include high temperature adhesive-backed die-cut rubber gaskets to protect the host shotgun's finish.

    Learn More
  21. 92030 : High-tube® Telescoping Stock Kit for Mossberg 500 Pic Rail Clamp 24" rail

    High-tube adapters have a comb height equivalent to an AR-15 and require an optics rail (included).

    High tube adapters allow proper cheek weld and eye alignment with popular optics such as an ACOG or Leupold CQT and others.

    Our complete stock kits include the aluminum AR adapter, Hogue rubber overmolded grip, US-made mil-spec six-position M4 SOPMOD style telescoping stock assembly and all necessary assembly hardware and instructions.

    Learn More
  22. 92280 : High-tube® Telescoping Recoil Stock & Adapter Rail for Mossberg 500 9" rail

    High-tube adapters have a comb height equivalent to an AR-15 and require an optics rail (included). High tube adapters allow proper cheek weld and eye alignment with popular optics such as an ACOG or Leupold CQT and others. Our complete stock kits include the aluminum AR adapter; Hogue rubber overmolded grip; US-made mil-spec six-position M4 SOPMOD style telescoping stock assembly; and all necessary assembly hardware and instructions.

    Learn More
  23. 92620 : Hook & Loop SureShell Mount for Moss 500 (6-Shell, 12-GA)

    NOTE: these Hook & Loop Mount kits do not include the Hook & Loop SureShell carriers, which are sold separately.

    While Mesa Tactical's development focus has long been on the needs of the professional tactical operator, we have nonetheless enjoyed some acceptance in the tactical competition community, especially Three Gun.  In response to a long expressed desire from Three Gun competitors for a quick-release version of our popular on-gun shell carriers, we've introduced Hook & Loop SureShell carriers.

    Hook & Loop SureShell carriers combine our SureShell Polymer carrier yoke with 3M SJ3572 hook fastener material laminated to a 3/32? Formex 94 substrate.  This allows Hook & Loop SureShell carriers to be easily attached to and removed from surfaces, such as shotgun receivers and MOLLE vests, covered with mating loop material.

    The Hook & Loop SureShell carriers are sold with adhesive backed 3M SJ3571 loop fastener that can be glued directly to a shotgun receiver.  For Three Gun competitors who do not want to permanently affix the loop fastener material to their shotguns, we also offer loop fastener bracket kits that are attached mechanically and can be easily removed at any time.

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  24. 93170 : LEO® Telescoping Stock Adapter for Mossberg 500 12Ga

    Our aluminum adapter kits include everything necessary to retrofit Remington or Mossberg pump shotguns with most AR-15 style stocks and pistol grips.

    Our adapter kits allow customers to add their own AR-15 stock assemblies as desired.

    Learn More
  25. 93180 : LEO® Telescoping Stock Kit for Mossberg 500 12Ga

    Adapts AR-15 style butt stocks and pistol grips for use with Remington 870 and Mossberg 500/590 shotguns to gives the shotguns similar handling characteristics to the AR-15. Our complete stock kits include the aluminum AR adapter; Hogue rubber overmolded grip; US-made mil-spec six-position M4 SOPMOD style telescoping stock assembly; and all necessary assembly hardware and instructions.

    Learn More
  26. 93220 : LEO® Telescoping Hydraulic Recoil Stock Kit for Mossberg 500 12Ga

    Adapts AR-15 style butt stocks and pistol grips for use with Remington 870 and Mossberg 500/590 shotguns to gives the shotguns similar handling characteristics to the AR-15.

    Our complete stock kits include the aluminum AR adapter, Hogue rubber overmolded grip, US-made mil-spec six-position M4 SOPMOD style telescoping stock assembly and all necessary assembly hardware and instructions.

    Learn More
  27. 93620 : SureShell® Carrier and Rail for Mossberg 500 4 Shell 12Ga 4.5" rail black

    Mesa Tactical SureShell Aluminum Shotshell Carriers with Rail combine a shell carrier with a MIL-STD-1913 (NATO STANAG 4694) Picatinny rail that accepts optical, sights, lasers or accessories. These shotshell carrier/rail systems mounts by using the drilled and tapped holes on top of the shotgun's receiver.

    Learn More
  28. 93630 : SureShell® Carrier and Rail for Mossberg 500 6 Shell 12Ga 4.5" rail Black

    Mesa Tactical SureShell Aluminum Shotshell Carriers with Rail combine a shell carrier with a MIL-STD-1913 (NATO STANAG 4694) Picatinny rail that accepts optical, sights, lasers or accessories. These shotshell carrier/rail systems mounts by using the drilled and tapped holes on top of the shotgun's receiver.

    Learn More
  29. 93640 : SureShell® Carrier and Rail for Mossberg 500 8 Shell 12Ga 4.5" rail Black

    Mesa Tactical SureShell Aluminum Shotshell Carriers with Rail combine a shell carrier with a MIL-STD-1913 (NATO STANAG 4694) Picatinny rail that accepts optical, sights, lasers or accessories. These shotshell carrier/rail systems mounts by using the drilled and tapped holes on top of the shotgun's receiver.

    Learn More
  30. 94190 : SureShell Polymer Carrier and Rail for Moss 500/590 (6-Shell, 12-GA, 8¼ in)

    Mesa Tactical SureShell Aluminum Shotshell Carriers with Rail combine a shell carrier with a MIL-STD-1913 (NATO STANAG 4694) Picatinny rail that accepts optical, sights, lasers or accessories. These shotshell carrier/rail systems mounts by using the drilled and tapped holes on top of the shotgun's receiver.

    These SureShell shotshell carriers for the Mossberg 930 feature mounting brackets with integral top Picatinny sight rails. The SureShell shotshell carriers are thus slung on the left side of the receiver, securely fastened at the top. No other shell carrier mounting method is as secure or looks as good. 

    The Picatinny rails are machined from aircraft grade 6061-T6 aluminum, which are  mil-spec hard anodized and provide an extremely durable non-glare matte finish.  The basic saddle rail design provides a robust mounting platform suitable for mounting a variety of optical sights, while a second version, which is nearly identical to the basic version, also includes a Mesa Tactical four, six, or eight shell SureShell shotshell carrier mounted on the left side of the receiver. Both versions are manufactured in compliance with MIL-STD-1913 Picatinny specifications, and no gunsmithing is required for installation.

    The principle difference between one model of SureShell and another, aside from capacity, is the backing plate, which is designed to mount the carrier assembly on a particular model of shotgun. Side-mount SureShell shotshell carriers for Mossberg , Remington and Benelli M1 shotguns use the trigger group pin holes to secure the assemblies to the weapon; the Benelli M2 Tactical, Benelli M4/M1014, Benelli SuperNova Tactical and some Mossberg 500/590/930 versions take advantage of the factory-tapped rail mounting holes in the tops of these shotguns and include integrated Pictanny optics mounting rails; another version with an integrated rail is the saddle-mount design for Remington; SureShell Carriers for M4 SOPMOD stocks feature special hardware for attachment to these buttstock.

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  31. 94750 : SureShell® Polymer Carrier for Mossberg 500/590 & Maverick 88® (6-Shell 12Ga) - Black

    SureShell Polymer Carriers are injection molded from glass filled polymer, secured to the receiver by a lightweight aluminum back plate with brass threaded inserts. Available only in a six-shell configuration, the polymer carrier also includes an innovative dual rubber friction system that reliably holds shotshells in place. Models are available with and without integral Picatinny rails for mounting optics.

    Learn More
  32. 94880 : SureShell® Polymer Carrier and Rail for Mossberg 500/590 & Maverick 88® (6-Shell 12Ga 4½ in)
    Mesa Tactical SureShell Polymer Shotshell Carriers with Rail combine a shell carrier with a MIL-STD-1913 (NATO STANAG 4694) Picatinny rail that accepts optical, sights, lasers or accessories. These shotshell carrier/rail systems mounts by using the drilled and tapped holes on top of the shotgun's receiver. Learn More
  33. 95160 : SureShell® Aluminum Carrier for Mossberg 500/590 & Maverick 88® (4-Shell 20Ga) Left S - Blk

    Shell holder carriers are milled from 6061-T6 aircraft aluminum, then bead blasted and mil-spec hard anodized for a rugged non-glare finish. They are secured to application-specific brackets, and include high temperature adhesive-backed die-cut rubber gaskets to protect the host shotgun's finish.

    Learn More
  34. 95170 : SureShell® Aluminum Carrier for Mossberg 500/590 & Maverick 88® (6-Shell 20Ga)

    Shell holder carriers are milled from 6061-T6 aircraft aluminum, then bead blasted and mil-spec hard anodized for a rugged non-glare finish. They are secured to application-specific brackets, and include high temperature adhesive-backed die-cut rubber gaskets to protect the host shotgun's finish.

    Learn More
  35. 95180 : SureShell® Aluminum Carrier for Mossberg 500/590 & Maverick 88® (8-Shell 20Ga)

    Shell holder carriers are milled from 6061-T6 aircraft aluminum, then bead blasted and mil-spec hard anodized for a rugged non-glare finish. They are secured to application-specific brackets, and include high temperature adhesive-backed die-cut rubber gaskets to protect the host shotgun's finish.

    Learn More
  36. 95330 : High-tube® Telescoping Hydraulic Recoil Stock Kit for Moss 500/590 & Mav 88 12Ga, no rail

    High-tube adapters have a comb height equivalent to an AR-15 and require an optics rail (not-included).

    High tube adapters allow proper cheek weld and eye alignment with popular optics such as an ACOG or Leupold CQT and others.

    Our complete stock kits include the aluminum AR adapter, Hogue rubber overmolded grip, US-made mil-spec six-position M4 SOPMOD style telescoping stock assembly and all necessary assembly hardware and instructions.

    Learn More
  37. 95350 : High-tube® Telescoping Stock Adapter for Moss 500/590 and Mav 88 12Ga no rail

    High-tube adapters have a comb height equivalent to an AR-15 and require an optics rail (not included).

    High tube adapters allow proper cheek weld and eye alignment with popular optics such as an ACOG or Leupold CQT and others.

    Learn More
  38. 95370 : High-tube® Telescoping Stock Kit for Moss 500/590 & Mav 88 12Ga, no rail

    High-tube adapters have a comb height equivalent to an AR-15 and require an optics rail (Not-included).

    High tube adapters allow proper cheek weld and eye alignment with popular optics such as an ACOG or Leupold CQT and others.

    Our complete stock kits include the aluminum AR adapter, Hogue rubber overmolded grip,US-made mil-spec six-position M4 SOPMOD style telescoping stock assembly and all necessary assembly hardware and instructions.

    Learn More
  39. 95380 : High-tube® Telescoping Stock Kit for Rem 870™ 12Ga no rail

    High-tube adapters have a comb height equivalent to an AR-15 and require an optics rail (not-included).

    High tube adapters allow proper cheek weld and eye alignment with popular optics such as an ACOG or Leupold CQT and others.

    Our complete stock kits include the aluminum AR adapter, Hogue rubber overmolded grip, US-made mil-spec six-position M4 SOPMOD style telescoping stock assembly and all necessary assembly hardware and instructions.

    Learn More
  40. 95650 : LEO Gen I Hydraulic Recoil Starter Pack for Moss 500/590 and Mav 88 (12-GA)

    Adapter with recoil tube only

    The stock adapters are investment cast aircraft grade aluminum, machined and powder coated black with a tough, chemical resistant finish. The LEO adapter is our best selling model, and features an optimal stock elevation allowing the use of iron sights or even the bead sight. All LEO adapters accept optional pushbutton sling swivels, and Remington 870 LEO adapters can accept stamped steel pocket sling loop and hook loops.

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  41. MAG490-BLK : SGA® Stock - Mossberg® 500/590/590A1 - Black

    The SGA Stock is an ambidextrous, user-configurable buttstock designed to add much-needed adjustability to the tried and true Mossberg 500/590/590A1 12ga series of shotguns. Featuring a spacer system for length of pull adjustment, improved grip ergonomics, recoil-reducing butt-pad, optional cheek risers for use with optics/raised sights, and other accessories,
    the Mossberg SGA brings Magpul design and engineering to another classic American firearm. Available in Black, Flat Dark Earth, and Orange to adapt to the mission at hand.

    Made in U.S.A.

    Learn More
  42. MAG490-FDE : SGA™ Stock - Mossberg® 500/590/590A1 - Flat Dark Earth

    The SGA Stock is an ambidextrous, user-configurable buttstock designed to add much-needed adjustability to the tried and true Mossberg 500/590/590A1 12ga series of shotguns. Featuring a spacer system for length of pull adjustment, improved grip ergonomics, recoil-reducing butt-pad, optional cheek risers for use with optics/raised sights, and other accessories,
    the Mossberg SGA brings Magpul design and engineering to another classic American firearm. Available in Black, Flat Dark Earth, and Orange to adapt to the mission at hand.

    Made in U.S.A.

    Learn More
  43. MAG490-GRY : SGA® Stock - Mossberg® 500/590/590A1 - Stealth Gray

    The SGA Stock is an ambidextrous, user-configurable buttstock designed to add much-needed adjustability to the tried and true Mossberg 500/590/590A1 12ga series of shotguns. Featuring a spacer system for length of pull adjustment, improved grip ergonomics, recoil-reducing butt-pad, optional cheek risers for use with optics/raised sights, and other accessories, the Mossberg SGA brings Magpul design and engineering to another classic American firearm. Available in Black, Flat Dark Earth, and Orange to adapt to the mission at hand.

    Made in U.S.A.

    Learn More
  44. MAG490-ORG : SGA™ Stock - Mossberg® 500/590/590A1 - Orange

    The SGA Stock is an ambidextrous, user-configurable buttstock designed to add much-needed adjustability to the tried and true Mossberg 500/590/590A1 12ga series of shotguns. Featuring a spacer system for length of pull adjustment, improved grip ergonomics, recoil-reducing butt-pad, optional cheek risers for use with optics/raised sights, and other accessories,
    the Mossberg SGA brings Magpul design and engineering to another classic American firearm. Available in Black, Flat Dark Earth, and Orange to adapt to the mission at hand.

    Made in U.S.A.

    Learn More
  45. MAG492-BLK : SGA™ Receiver Sling Mount - Mossberg® SGA Stock - Black

    The SGA Receiver Sling Mount is a connection point for the Mossberg 500/590/590A1 SGA Shotgun Stock and one-point clip-in style attachments such as the MS3 Paraclip™, the HK® hook, ITW™ MASH hook, and others. Made from precision cast steel that is Melonite® treated for wear and corrosion resistance. Dedicated fit for the Magpul SGA Stock, the Receiver Sling Mount can be installed on either the left or right side of the front of the stock.

    Made in U.S.A.

    Learn More
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